/*
 * Copyright 2019 NAVER Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.navercorp.pinpoint.profiler.sender.grpc;

import com.navercorp.pinpoint.common.util.Assert;

import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;


/**
 * @author Woonduk Kang(emeroad)
 */
public class ExecutorAdaptor implements Executor {
    private volatile boolean shutdown;
    private final ScheduledExecutorService scheduledExecutorService;

    public ExecutorAdaptor(ScheduledExecutorService scheduledExecutorService) {
        this.scheduledExecutorService = Assert.requireNonNull(scheduledExecutorService, "scheduledExecutorService must not be null");
    }

    @Override
    public void execute(Runnable command) {
        Assert.requireNonNull(command, "command must not be null");

        if (shutdown) {
            return;
        }

        if (command instanceof ReconnectJob) {
            ReconnectJob reconnectJob = (ReconnectJob) command;
            scheduledExecutorService.schedule(reconnectJob, reconnectJob.nextBackoffNanos(), TimeUnit.NANOSECONDS);
        }
        throw new IllegalArgumentException("unknown command type " + command);
    }

    public void close() {
        shutdown = true;
    }

}
